Question

which is required for both anaerobic respiration and aerobic respiration?
oxygen
water
mitochondria
glucose

Explanation:

Both aerobic and anaerobic respiration start with glycolysis which uses glucose as a substrate. Aerobic respiration requires oxygen and occurs mainly in mitochondria and produces water as a by - product. Anaerobic respiration does not require oxygen and does not occur in mitochondria in the same way as aerobic respiration. But both start with the breakdown of glucose.

Answer:

D. glucose